MANIK, R S; SINGLA, S K; PALTA, P; CHAUHAN, M S. Ultrasonographic study of ovulation in buffalo following natural oestrus and after synchronization of oestrus by treatment with prostaglandin or norgestomet and estradiol valerate. The Indian Journal of Animal Sciences, Delhi, India, v. 72, n. 2, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/37441. Acesso em: 20 oct. 2025.